Speech fillers are words or sounds that people use in conversation to fill pauses or gaps while thinking. Common examples include "um," "uh," "like," and "you know." These fillers can help speakers manage the flow of conversation, giving them a moment to gather their thoughts without losing the listener's attention. While speech fillers are often seen as a sign of uncertainty or lack of preparation, they can also serve a social function. They can make speech sound more natural and relatable, helping to create a connection between the speaker and the audience. However, excessive use may distract from the message being conveyed.